John bowers



@einen grieten intent @frn JOHN BOWERS, OF CLINTON, wisoON-sIN, .issieNOn rro nLiiAH W. BLAIS- DELL, Jn., OF ROOKPORT, ILLINOIS.

Letters Patent No. 75,356, dated Ma1'ch10, 1868.

IMPROVEMENT IN GATES.

Be it known that I, JOHN BOWERS, of Clinton, in the county. of Rock, :ind State of Wisconsin, have invented n. new and useful Iinprovement in the Construction of Carriage-Gates; and I do hereby declare that the following is a. full, clear, and exact description of the construction and operntion of the same, referenceheing had to the annexed drawings, lmaking e. part ofthe specification, of whichi l Figure 1 is a, perspective view, and

Figures 2,3, and 4 are detached sectional views `of the parts or devices onA lwhich, a. p11-tent is elninied.

Description. i

Fig. 1. NQN are themcin gte-posts. L is thegate-cap. G are covered arms or runways 4for the cord. K K are pulleys, over which cords P P run. I I are the .outer posts. D-is the gate. E is the post into lwhich the gate shuts.I F Flore parallel levers. M M are anchors or'rear post-s, to which thc lower ends of the rear levers' are fastened by gudgeons. B is a wooden cylinder, through which 'the main levers poss, fastened `to the main posts by gudgeons, on which said cylinder revolves. A is thehnlance-weight, ailixefl to the extension of the mitin levers-F. C is the sunken box or pit, in which the balance-weight A vibret'es when the gate is in 'mot-ion. Q Q are the coversfor the box C, which, together with the wooden cylinder B, protect hox'C against snows and ruin. H is o. double-swinging pulley-block, through which cords P P pass, Aguided by deodeyes O O infront and end. R R are the handles for opening and shutting gate; allot' which devices,pnrts,

'and portions, except those hereinafterclnimed 'as new and novel, it is thought are well known to the public in connection with cnrriage-gates, and in general use.

Fig. 2 is a.V sectional drawing showing'the extension of the main levers F, the wooden cylinder B, and the balance-weight Fig. Bis a. sectionnldro'wing showing the interior construction of the double-swinging pulley-block H, w'ith the location and use4 oi' the double pulleys J J, and the cord passing over them.

Fig. 4'is c. sectional drawing showing the swinging motion ofthe pulley-block H,- suspended in the hcnd or top of the moin gate-posts by a single rod. p i

This gete is operated by means of inclined parallel levers, and is balanced by n weight attached to the lower end of th'e'nmin levers, which are 'extended for' that purpose, said weight working in n sunken b ox fixed lin the' ground, ond protectedefrom rain and snow by covering, as shown. The motive-power is applied by means of'cords, attached in the ordinary wey to the upper'pztrt of the gate, thence passing upward through dead-eyes .pinto :t double pulley-block, suspended by nsingle rod, or working in journals in the heed of the gate, in such a manner as to partake of a. swinging or lateral motion, as shown by diagrams.`

By this arrangement, this gate, of full size, es has been shown by repentedcxperinient, moy he opened and shut twenty-live onthitty timesa. minute, 'by a. person standing on the same side of it, with o. slight pull upon the handle. The full-sized gate works -better, requiring a. lmuch less sudden pull upon the handles. The points in this combnntion on'.which I clnim ,a. potent are these 1. The extension of the n lztin levers FF, and the application to the lower en-d ofthe seme of the balonce- Weight A. I v

2. The double pulley-block, with dead-eyes to keep the cord on the pulleys, suspended on a. single roth-or working with journals in the head of ythe gote, and operating withv :t swinging or loteml motion on the opening and shuttingof thersnme, ns shown bydiegram.

I disclaim all other points, parte, or poi-tions of the said combination, the same being, as I heliev'e, with the exception of the points claimed above, public property by long and common use; but whether so; or not, I

d' l' lth y 1B Hlm em JOHN BOWERS.

Witnesses: K

W. W. Woon,` H. M. WEBB. 

